A user who enters a chatroom, streaming room, forum etc., and without permission from the owner or moderator of said room begins self advertising and/or dropping web-links to their own chat room, stream, server etc. ; essentially prostituting themselves in your chatroom or stream room.

So this Roomstitue comes into my stream chat and just starts dropping links to their own stream! I would have been alright with it if that dumbass Roomstitute had asked for permission first, but by just doing it like that I was like,"yeah buddy don't just barge in and fuck my couch... That's my couch to fuck!" What a fucking asshole, bitch-ass, self-promoting Roomstitute!